[FFmpeg-user] Latest GIT version doesn't compile with libvpx_vp9 encoder

[ZikZak]

Ok, eventually after recompiling libvpx without any configure option ffmpeg
was able to compile, still without VP9 though.
You are most certainly right about something they must have changed that
FFMPEG doesn't like in VP9 now.

ffmpeg -encoders
ffmpeg version N-87875-gf685bbc Copyright (c) 2000-2017 the FFmpeg
developers
  built with gcc 4.9.2 (Debian 4.9.2-10)
  configuration: --enable-nonfree --disable-doc --disable-encoders
--enable-libvpx --enable-encoder=libvpx_vp8 --enable-encoder=libvpx_vp9
--disable-ffserver --enable-gpl --enable-encoder=png
--enable-encoder=libopus --enable-encoder=webvtt --enable-libopus
--enable-ffplay --disable-ffprobe --enable-neon --enable-vfp
  libavutil      55. 79.100 / 55. 79.100
  libavcodec     57.108.100 / 57.108.100
  libavformat    57. 84.100 / 57. 84.100
  libavdevice    57. 11.100 / 57. 11.100
  libavfilter     6.108.100 /  6.108.100
  libswscale      4.  9.100 /  4.  9.100
  libswresample   2. 10.100 /  2. 10.100
  libpostproc    54.  8.100 / 54.  8.100
Encoders:
 V..... = Video
 A..... = Audio
 S..... = Subtitle
 .F.... = Frame-level multithreading
 ..S... = Slice-level multithreading
 ...X.. = Codec is experimental
 ....B. = Supports draw_horiz_band
 .....D = Supports direct rendering method 1
 ------
 VF.... png                  PNG (Portable Network Graphics) image
 V..... libvpx               libvpx VP8 (codec vp8)
 A..... libopus              libopus Opus (codec opus)
 S..... webvtt               WebVTT subtitle